Vanguard Total International Stock Index Fund Average Annual Total Returns - Institutional Select Prospectus [Member] |
12 Months Ended | 60 Months Ended | 114 Months Ended | |
|---|---|---|---|---|
Oct. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| FTSE Global All Cap ex US Index (reflects no deduction for fees or expenses)[Member] | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 31.95% | 8.04% | 9.40% | |
| Institutional Select Shares | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 32.25% | 8.00% | 9.41% | |
| Performance Inception Date | Jun. 24, 2016 | |||
| Institutional Select Shares | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 31.09% | 7.10% | 8.57% | |
| Institutional Select Shares | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 19.63% | 6.06% | 7.44% |